Lectrosonics DBu Digital Encrypted Beltpack Transmitter

Lectrosonics DBu Digital Encrypted Beltpack Transmitter The DBu transmitter is a 4th generation design with specially developed, high-efficiency digital circuitry for extended operating time on two AA batteries. The transmitter can tune in coarse or fine steps across the UHF television band from 470 to 608 MHz (470-614 MHz for export versions), with a selectable output power of 25 or 50 mW. The pure digital architecture enables AES 256-CTR encryption for high-level security applications. The top panel contains the antenna jack, audio input level LEDs, the programmable function switch and the audio input jack. The LEDs provide red/green indications of the audio level from -20 dB to the onset of limiting to enable accurate input gain adjustment. The programmable switch can be configured as a mute switch, a power on/off switch, talkback, or be bypassed. Studio quality audio performance is assured by high quality components in the preamp, wide range input gain adjustment and DSP-controlled limiting. Input connections and settings are included for any lavaliere microphone, dynamic microphones and line level inputs. Input gain is adjustable over a 44 dB range in 1 dB steps to allow an exact match to the input signal level, maximizing the dynamic range and signal to noise ratio. Key Features 24 bit/48 kHz digital conversion Tunes across entire UHF frequency range 256-bit encryption - AES 256-CTR Selectable RF power at 25 and 50 mW USB port for firmware updates Wide range input gain adjustment DSP-controlled input limiter Two AA battery power Solid machined aluminum housing Technical Specifications Operating temp. range Celsius -20° - 50°; Farenheit -5° - 122° Frequency Selection Steps 25 kHz Audio Frequency Response 20 Hz - 20 kHz +- 3dB RF Power output Selectable; 10, 25 or 50 mW Frequency Stability ± 0.002% Digital Modulation 8PSK Equivalent input noise -128 dBV Input level Nominal 2 mV to 300 mV, before limiting Greater than 1V maximum, with limiting. Input impedance Mic 300 Ohm Line 2k Ohm Input limiter Dual envelope type; 30 dB range Gain control range 44 dB in 1 dB steps; digital control Modulation indicators Dual bicolor LEDs indicate modulation of -20, -10, 0 and +10 dB referenced to full modulation LCD bar graph Controls Top panel toggle switch; programmable as power, mute or none (off) function Side panel membrane switches with LCD interface for power on/off and all setup and configuration controls Audio Input Jack Switchcraft 5-pin locking (TA5F) Antenna Galvanized steel, flexible wire Battery Two AA Duracell Ultra recommended Battery Life 5 hours; Duracell Ultra alkaline Weight 6.24 ounces (177 grams), including two AA batteries and wire belt clip Dimensions 3.2 x 2.5 x .74 in. (86 x 62 x 19 mm) Emission Designator 200KG1E Included Accessories 1 - AMM-19 straight antenna - SMA mount 1 - AMM-22 straight antenna - SMA mount 2 - AA Batteries 1 - 26895 wire belt clip